Airtac SAIJ125 Adjustable Cylinder SAIJ125AX230-10S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX230-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 230mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ125 mm
- Stroke230 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX230-10S
The AirTAC SAIJ125X230-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 220 to 230 mm for precise end-position tuning during commissioning. It features a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and a built-in magnet compatible with CMSE reed and DMSE solid-state sensors. Delivering a pull force of 5734 N at 0.5 MPa and up to 11045 N at 0.9 MPa, it handles heavy loads with a 32 mm rod diameter and M27x2 thread.
This extruded aluminum barrel design integrates sensor grooves on both sides and omits the FB, CA, CB, and CR mounting options, utilizing a reduced set of Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts. The rear adjuster acts purely as a mechanical stop to fine-tune the travel end without swapping the cylinder, but it does not lock the load without live air pressure.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX230-10S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX230-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 230 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M27×2 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 40 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ125 Adjustable Cylinder SAIJ125AX230-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×230 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX230-10S Is Used
Machine Setup Fine-Tuning
Dial in the exact 220-230 mm end position during initial commissioning without adding bulky external stops or machining new cylinder mounts.
Heavy Press Positioning
Leverage the 6136 N push force at 0.5 MPa to move heavy assemblies, using the rear stop to compensate for mechanical tolerance stack-up.
Product Size Changeover
Quickly trim the stroke by up to 10 mm on automated lines when switching between slightly different product lengths, ensuring precise repeatable stops.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX230-10S the Right Cylinder?
Choose this 125 mm bore when an 80 mm bore (2268 N pull at 0.5 MPa) is insufficient for your load, but a 160 mm bore (9425 N pull at 0.5 MPa) would be excessive overkill. The 10 mm adjustable window is ideal for applications requiring slight end-stop corrections during machine setup or product changeover, rather than swapping to a fixed-stroke SAI cylinder. For exact ISO 15552 replacement matching, verify the 230 mm stroke, 10 mm adjustment range, PT tapered ports, and the -S magnet requirement.
With a 230 mm stroke, the 32 mm rod and M27x2 thread provide robust side-load capacity, but any long unsupported load still requires an external guide to prevent premature wear. If your application requires the load to be held in place without continuous live air pressure, note that the rear adjuster is only a travel stop; you must integrate an external rod lock or pilot-operated check valve, or select a SAIL or BSAI cylinder for true pneumatic locking.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX230-10S FAQ
At 0.5 MPa operating pressure, it provides 6136 N of push force and 5734 N of pull force. At 0.9 MPa, the push force increases to 11045 N.
A rear adjusting screw acts as a mechanical stop, allowing you to shorten the effective travel from the nominal 230 mm down to 220 mm. This stop only sets the end position; it does not lock the load without live air pressure.
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